Ozone apparatus



Jam. M, w39. T. w. w. FORREST LMZZ OZONE APPARATUS.

Filed oct. 4. 1926 A P "l www A TTORNEYS Patented Jan. 14, 1930 vSTATES.

UN ITE THOMAS W. W. FORREST, OF FRESNO, CALIFORNIA, ASSIGNOR TO SUN-MAID RAISIN GROWEBS OF CALIFORNIA, 0F FRESNO, CALIFORNIA, A CORPORATION OF CALI- FOBNIA.

OZONE APPARATUS Application led October 4, 1926. Serial No. 139,415.

This invention relates to apparatus for the production of ozone or ozonized air and has for its objects a simplified construction of such apparatus as well as increased efliciency.

In the drawings hereto Fig. l is a vertical section through my apparatus as taken along the line 1-1 of Fig. 2. Fig. 2 is a plan section as taken along the line 2 2 of Fig. 1. Fig. 3 is an enlarged broken section of the lower corner of Fig. 2 as taken along the line 3-3 thereof, while Fig. 4 is a separate lan view of one of the separating blocks o the device.

In further detail the drawing shows an iron box 1 rovided with a removable lid 2 held on as y screws 3 and preferably fitted with a thin gasket along the parting line to make it tight.

This box is provided with a sheet metal partition 4 forming two unequal size spaces within the box and the partition is perforated with line holes over its entire surface.

At the bottom of the box to the right of the partition is a threaded pipe inlet 5, and at the top to the left of the partition is a threaded pipe outlet' 6. Within and secured to the two vertical sides of the box are angles 7, and in the space between these angles and the partition 4 the box is filled with alternating plates of metal 8 and glass 9 supported on a sheet of soft rubber 10 or other dielectric at the bottom and covered by a similar sheet 11 on top of the stack and against which top sheet the lid 2 clamps, the whole stack being freely removable through the top of the box when the lid is removed.

The metal sheets are of light gage bent to zigzag shape to form a corrugated plate substantially as shown. (In practice 2O gage galvanized iron bent to form a corrugation of about ,3g inch deep gave good results when interposed between sheets of 20 ounce glass.)

The metal sheets are laid between the glass sheets with channels running at right angles to the screen 4 and are held in place spaced from the sides of the box by cut out or L shaped blocks of wood 13 (see Fig. 4) lying against opposite sides of the box. These strips of wood are of no greater thickness than the height of the corrugations of the metal sheets and are well soaked in hot paraiiine before assembling, tho if desired hard rubber or other dielectric strips may be used in place of wood.

Every other metal plate of the pile is pro vided with an electric lead 14 connected to a negative terminal 15 suitably mounted on insulators and projecting out of the box, while the alternate metal plates are similarly lwired at 16 to a positive pole 17.

By the arrangement described a blast of dry air forced into pipe 5 will flow through the screen and the corrugation channels of the plates for exit from the pipe 6.

By having the perforations in the screen small in proportion to the air pressure introduced as is intended, a pressure zone will be built up in the compartment A insuring an even flow throughout the plates. The plates are energized with a high tension A. C. current while the air pressure is applied.

Such an apparatus has been found to require no cooling, probably due to the large amount of air forced evenly through every part thereof, as against the amount which mi lit be drawn therethrough by suction, and is 'ound to give an unusually high concentration of ozone.

I claim:

1. Ozone apparatus comprising a box with a removable lid, an air inlet at one end and air outlet at the other end, a stack of alternating dielectric and corrugated metal plates in the box spaced from its ends, said metal plates being smaller than the dielectric plates and spaced from the sides of the box by corner-engaging insulating strips lying in the plane of the corrugated plates.

2. Ozone apparatus comprising a box with a removable lid, an air inlet at one end and air outlet at the other end, a stack of alternating dielectric and corrugated metal plates in the box spaced from its ends, a sheet of soft rubber covering the top and bottom of the stack, and a lid on the box clamping the stack tightly between the soft rubber sheets.

3. Ozone apparatus comprising a box with a removable lid, an air inlet at one end and air outlet at the other end, a stack of a1ter-- nating dielectric and corrugated metal plates in the box spaed resilient material from its ends, a layer of covering the top and bot- 5 tom of the stack, and a lid on the box clamping the stack tightly between said resilient xiv) material.

THOMAS W. W. FRREST. 

